odbc_statistics
(PHP 4, PHP 5, PHP 7)
odbc_statistics — Retrieve statistics about a table
说明
odbc_statistics (
resource
$connection_id ,
string $qualifier ,
string $owner ,
string $table_name ,
int $unique ,
int $accuracy ) :
resource
Get statistics about a table and its indexes.
参数
-
connection_id -
ODBC 连接标识符，详见 odbc_connect()。
-
qualifier -
The qualifier.
-
owner -
The owner.
-
table_name -
The table name.
-
unique -
The unique attribute.
-
accuracy -
The accuracy.
返回值
Returns an ODBC result identifier 或者在失败时返回 FALSE.
The result set has the following columns:
- TABLE_QUALIFIER
- TABLE_OWNER
- TABLE_NAME
- NON_UNIQUE
- INDEX_QUALIFIER
- INDEX_NAME
- TYPE
- SEQ_IN_INDEX
- COLUMN_NAME
- COLLATION
- CARDINALITY
- PAGES
- FILTER_CONDITION
The result set is ordered by NON_UNIQUE, TYPE, INDEX_QUALIFIER, INDEX_NAME and SEQ_IN_INDEX.
